As used in this article, unless the context requires a different meaning: “Discharge” means any spilling, leaking, pumping, pouring, emitting, emptying, or dumping, except discharges in compliance with a permit issued by the Board or Department. “EPA” means the U.S. Environmental Protection Agency. “Facility” means any development, building, structure, or installation within the Commonwealth that is required to submit a facility response plan pursuant to the EPA’s Clean Water Act Hazardous Substances Facility Response Plans pursuant to 40 C.F.R. Part 118. “Hazardous substance” means any federal Clean Water Act hazardous substance designated in 40 C.F.R. Part 116. “Hazardous substance” does not include oil. “Oil” means oil of any kind and in any form, including animal fat, vegetable oil, cooking oil, petroleum and any petroleum by-product, fuel oil, lubricating oil, sludge, oil refuse, oil mixed with other wastes that are not a hazardous substance, crude oil, and any other liquid hydrocarbon regardless of specific gravity. “Operator” means any person that owns, operates, charters, rents, or otherwise exercises control or responsibility for a facility.